Dyeing or printing cellulose fibres and blends with dispersion dyes - in water-solvent mixt. contg. alkoxylated carbonamide

摘要

Dyeing or printing of cellulose fibres or their blends with synthetic fibres, with mixts. contg. (A) a water-insoluble dye, (B) a water-soluble solvent for the dye and swelling agent for the cellulose fibres, (C) water and (D) 0.5-5 wt. % reaction prod. from condensn. of 8-20C aliphatic monocarboxylic acid and 1-6C primary or sec. hydroxyalkyl amine, subsequently reacted with 0.5-6 (1-4) mols. propylene oxide or butylene oxide. Use of (D) instead of similar condensn. prods. reacted with =20 mols ethylene oxide, as claimed in the parent patent, gives a further increase in dye yield and in brilliance and fastness of the shade obtd. Stble dye baths and printing pastes are obtd.